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Abstract

Dermoid cysts (DCs) are benign cutaneous tumors that tend to persist and grow. The aim of this study was to examine the clinicopathologic features of congenital DCs. We present a case series of 75 children with a clinicopathologic diagnosis of DC. Seventy-two cysts were located on the head, one on the neck, and two on the trunk. Six cysts were located along the midline. Eight patients had symptoms other than changes in cyst size. Imaging studies were performed on 15 patients. Surgical excision was the primary treatment in all 75 cases. Neurosurgery and ophthalmology services were involved in the care of some patients. Histopathologic studies reported a foreign body giant cell reaction in 17 of the cysts. No recurrence was documented. DCs can remain stable for years, but they can become symptomatic as a result of enlargement and rupture or, more rarely, as a result of extension into surrounding tissues. Physicians should be aware that certain locations have a higher risk of DC extension, and adequate diagnostic investigations should be performed before their complete resection.